From 67f8f70db85784654227d4401fe5dcc8c993622a Mon Sep 17 00:00:00 2001
From: Sergey Bronnikov <sergeyb@tarantool.org>
Date: Sat, 26 Feb 2022 12:19:18 +0300
Subject: [PATCH] test/fuzz: add fuzzing test for decoding decimals
NO_DOC=testing
NO_CHANGELOG=testing
(cherry picked from commit 4deadeb84e2b3011018eadbbfe2d1e798d95fe5f)
---
test/fuzz/CMakeLists.txt | 7 +++++++
test/fuzz/decimal_to_int64_fuzzer.c | 19 +++++++++++++++++++
2 files changed, 26 insertions(+)
create mode 100644 test/fuzz/decimal_to_int64_fuzzer.c
diff --git a/test/fuzz/CMakeLists.txt b/test/fuzz/CMakeLists.txt
index 6ad7a203be..f79f2f2907 100644
--- a/test/fuzz/CMakeLists.txt
+++ b/test/fuzz/CMakeLists.txt
@@ -133,6 +133,13 @@ if (NOT ENABLE_UB_SANITIZER)
LIBRARIES xrow fuzzer_config)
endif ()
+# Blocked by https://github.com/tarantool/tarantool/issues/8948.
+if (NOT ENABLE_UB_SANITIZER)
+ create_fuzz_test(PREFIX decimal_to_int64
+ SOURCES decimal_to_int64_fuzzer.c
+ LIBRARIES core fuzzer_config)
+endif ()
+
include(ProtobufMutator)
# UndefinedBehaviorSanitizer is not supported in LuaJIT.
diff --git a/test/fuzz/decimal_to_int64_fuzzer.c b/test/fuzz/decimal_to_int64_fuzzer.c
new file mode 100644
index 0000000000..de24dbf48e
--- /dev/null
+++ b/test/fuzz/decimal_to_int64_fuzzer.c
@@ -0,0 +1,19 @@
+#include <string.h>
+#include <stdlib.h>
+#include "decimal.h"
+#include "trivia/util.h"
+
+int
+LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
+{
+ char *buf = xcalloc(size + 1, sizeof(char));
+ if (!buf)
+ return 0;
+ memcpy(buf, data, size);
+ buf[size] = '\0';
+ decimal_t d;
+ decimal_from_string(&d, buf);
+ free(buf);
+
+ return 0;
+}
--
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